1147861201 has 2 divisors, whose sum is σ = 1147861202. Its totient is φ = 1147861200.

The previous prime is 1147861163. The next prime is 1147861241. The reversal of 1147861201 is 1021687411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 842450625 + 305410576 = 29025^2 + 17476^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147861201 - 2¹⁵ = 1147828433 is a prime.

It is a super-2 number, since 2×1147861201² = 2635170673522324802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1147861241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573930600 + 573930601.

It is an arithmetic number, because the mean of its divisors is an integer number (573930601).

Almost surely, 2^1147861201 is an apocalyptic number.

It is an amenable number.

1147861201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147861201 is an equidigital number, since it uses as much as digits as its factorization.

1147861201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 1147861201 is about 33880.1003688006. The cubic root of 1147861201 is about 1047.0396436153.

The spelling of 1147861201 in words is "one billion, one hundred forty-seven million, eight hundred sixty-one thousand, two hundred one".